1443226730 has 128 divisors (see below), whose sum is σ = 3105423360. Its totient is φ = 477066240.

The previous prime is 1443226709. The next prime is 1443226769. The reversal of 1443226730 is 376223441.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11363927 + ... + 11364053.

It is an arithmetic number, because the mean of its divisors is an integer number (24261120).

Almost surely, 2^1443226730 is an apocalyptic number.

1443226730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1443226730 is an abundant number, since it is smaller than the sum of its proper divisors (1662196630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1443226730 is a wasteful number, since it uses less digits than its factorization.

1443226730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 1443226730 is about 37989.8240322326. The cubic root of 1443226730 is about 1130.0860690961.

The spelling of 1443226730 in words is "one billion, four hundred forty-three million, two hundred twenty-six thousand, seven hundred thirty".